Advertisement Remove all ads
Advertisement Remove all ads
Sum
Factorise: `(6 2/3)^2 - (2 1/3)^2`
Advertisement Remove all ads
Solution
`(6 2/3)^2 - (2 1/3)^2`
`= (20/3)^2 - (7/3)^2`
`= (20/3 + 7/3)(20/3 - 7/3)`
`= (27/3)(13/3) = 9 xx 13/3 = 39`
Concept: Factorisation by Difference of Two Squares
Is there an error in this question or solution?
Advertisement Remove all ads
APPEARS IN
Advertisement Remove all ads